Making the “Bright” Choice | LES
In this learning and evaluation situation, students will compare different types of light bulbs to determine which is the most efficient. In the process, they will learn about the relationship between power and electrical energy, as well as energy efficiency.
Subjects : Science and Technology and Applied Science and Technology
Grade: Secondary IV
Duration: 120 minutes
Learning Objectives :
-
Describing qualitatively the relationship between the power of an electrical
appliance, the electrical energy it consumes, and the amount of time it is in
operation -
Applying the mathematical relationship between electrical energy consumed,
the power of an electrical appliance, and the amount of time it is in operation -
Defining the energy efficiency of a device or system as the proportion of energy
consumed that is transformed into effective work -
Explaining how to improve the energy efficiency of an electrical appliance
